<template>
    <div class="row">
      <div class="card" v-for="user in userList" :key="user.id">
        <a :href="user.html_url" target="_blank">
          <img :src="user.avatar_url" style='width: 100px'/>
        </a>
        <p class="card-text">{{user.login}}</p>
      </div>
    </div>
</template>

<script>
// 消息订阅与发布
import pubsub from 'pubsub-js' 
  export default {
    name:'List',
    data() {
      return {
        userList:[]
      }
    },
    mounted(){
      // this.$bus.$on('getUserData',userMsg=>{
      //   this.userList=userMsg
      //   // console.log(this.userList);
      // })
      // 第二种消息订阅与发布
     const pid=pubsub.subscribe('getUserData',(msgName,userMsg) => {
                this.userList=userMsg
      })
    },
    beforeCreate(){
      // this.$bus.$off('getUserData')
      pubsub.unsubscribe(pid)
    }
  }
</script>

<style>
.album {
  min-height: 50rem; /* Can be removed; just added for demo purposes */
  padding-top: 3rem;
  padding-bottom: 3rem;
  background-color: #f7f7f7;
}

.card {
  float: left;
  width: 33.333%;
  padding: .75rem;
  margin-bottom: 2rem;
  border: 1px solid #efefef;
  text-align: center;
}

.card > img {
  margin-bottom: .75rem;
  border-radius: 100px;
}

.card-text {
  font-size: 85%;
}
</style>